问题 填空题
函数y=
1
2
sin2x
的最小正周期T=______.
答案

由三角函数的周期公式可知,

函数y=

1
2
sin2x的最小正周期为T=
2

故答案为:π.

连词成句

连词成句。

l. mother's        season         my         is        winter        favorite  (.) 

                                                                                                      

2. we      make      can       snowman       a  (.) 

                                                                                                    

3. season       best         do         like        which        you (?) 

                                                                                                  

4. picnic        I        have         with         parents         my      a (.)  

                                                                                                  

5. winter        too       for       cold       me       is (.)

                                                                                                 

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